Antifriction bearing and process of making same



v w S. i V.. NS e A 8% w Mm mm N MN MN E N wr"- k v Nm l ll v m 5 S. B.HASELTINE Filed Jan. 14, 1921 Mal-6, 1923.

ANTIFRICTION BEARING AND PROCESS OF MAKING SAME Patented Mar. 5, 1923ialuairan stares senaat earner eerie-a s'iaCY s. HASELTINE, or CHICAGO,ILLINOIS, AssIGNon To WILLIAM H. Minna, or

1 CIVIAZY, NEW YORK.

ANTIFEICTION BEARING AND PROCESS OF MAKING SME.

lle it known that I, STACY'B. Hiisnifrinn, a citizen of the UnitedStates, residing at Chicago, in the county of Cook and State of4illinois, have invented a certain new and useful Improvement inA'ntifriction Bearings and Processes of Making Same, of which thefollowing is a` full, clear, concise, and eicactdescription, refei'enceheilig had to the accompanying drawings, forming a pai't of thisspecification.

This invention relates to improvements in anti-friction bearings andprocess of male ing same.

One object of the invention is to provide an anti-friction bearingconsisting of few parts and so arranged that the same cannotbecoiiiedisassembled or the proper `relation of the parts accidentallydisarranged or tampered with after the parts have been properlyassembled.

Another object of the invent-ion is to 'provide an improved process ofmaking an antifriction bearing possessing the. characteristicsindicatedin the preceding paran graph.

More specifically, the object of the iiivention is to provide ananti-friction bearing adaptable for use as a railway side bearing andprocess of making the same.

In the drawing forming a part of this specificationn Figure 1 is: asideelevation of an anti-friction bearing of the side bearing type showingthe arrangement of parts as initially assembled in their original manuifactured form.. Figure 2 isa top plan view of the vstructure illustratedin Figure 1.

Figure 3A a vertical transverse section coiiesponding to the line 3 3 ofFiguie 1. And Figures 4. 5 and 6 are views corresponding respectively toFigures 1, 2 and 3, but illustrating' the side bearing in its final orcompleted form ready for application to to the section line G-''ofFigure 4.

In said drawing-the side bearing is shown as comprising. broadly, aretaining member or base casting A; a wear plate B; and an anti-frictionelement C. y

ln its final or completed forni.y the retaining` member or base castingA is of hollow box-like form having parallel vertically exv tending sidewalls 11i-'10, end walls 11-11,

bottom wall 124` andcorner flanges 13perfoi'ated as indicated at 14 sothat the saine may be secured by rivets or other suitable `fasteningdevices to a bolster of a car. Each of said side walls 10` is providedalong its upper edge with an inturned flange 15 as best indicated inFigure 6.

The wear plate B is preferably of steel and consists merely of a flatpiece of rectangular forni, the same being perforated as indicated at16H16 so as to adapt said plate to be seated over and held in positionbva plurality of corresponi'lingly located lugs or teeth 174-17preterably castintegral with the retaining member A, said teeth 17projecting above the upper surface of the V1 y i i" plate l, as cleai lyshown in li igui es 1 and el.

The anti-friction element C, as shown, is of the gravity self-centeringtype and has upper and lower concentric bearing surfaces 18 and 19struck on different radii. `The upper and lower surfaces 18 and 19 aremerged into side surfaces 20.20, the element C being generally oftriangular cross section so as to have the greater mass thereof at thebottom below the rolling center. In the bottom. the element C is formedwith a plurality of notches 21e- 21 so located as to cooperate with theteeth 17 and thereby prevent bodily displacement of the element C withrespect to the retaining member A `while at the same time permittingthenecessary rolling movement to either side of normal position. maybeprovided on its interior at each end with curved edge flanges 22-22 so'conformed and located as to fit the curved sides 2O of the element Cand limit the movement of the latter in either direction. The element Cis further provided with preferably `integral studs 23-23 at itsopposite ends alined or concentric with the rolling centei or axis oftheelement C. As clearly shown in Figure 6, said studs28 extend under theflanges 15 but are slightly spaced from the latter thereby permittingthe rolling movenient of the element C, at the same time pyreventingwithdrawal of the element C from the retaining member A.

ln carrying out my invention. the member A will preferably be made inthe form of a malleable casting and, as originally cast, will coincidewith the conformation illustrated in Figures 1, 2 and 3. As shown insaid Figures 1. 2 and 3. it will be noted that the The retaining memberA y bottom is oppositely bent upwardly from the center of the member Aas indicated at 1212a and the end walls will be upwardly converged asindicated at 11a-11a. VThe side walls are diverged from the ends of thecenter of the retaining member A, as indicated at 10a- 10% so as toleave the Vmairimum opening as indicated at 24k at the center of themember A. The maximum width between the side walls 10u-l0a at the centeroi the retaining member will be made slightly greater than the over-alldistance from, outer face to outer face of the two studs 23-23 so thatthe anti-friction element C may be readily inserted from the top of theretaining member A when the latter is in its original form, as clearlyillustrated in Figures 2 and 3.

vWith the parts as shown in Figures l, 2 and 3, the bearing is assembledby first placing the plate B within the retaining member A and then theanti-friction element therewithin. After thus assembled,

pressure is applied to kthe retaining member' A so as to deforin thelatter to its final condition shown, in Figures 4, 5 and G, during whichprocess the bottom wall of the retaining member will be flattened out,the end walls will be rendered vertically parallel and the side wallswill be drawn in at their centers so as to bring the flanges l5 intooverhanging relation with respect to the studs 23. Y

With the side bearing made and constructed as above described, .it isevident that the anti-friction element C- cannot be removed ordisassembled from the retaining member A nor can the relative operativepositions of the anti-friction element C, plate B, and i'etaining memberA be disarranged or tampered with so that the manu't'acturer, inshipping the, device, may be slire that the bearing will reach itsdestination and be properly applied. y

I have herein shown and described what I now consider the preferredmanner of carrying out the invention but I am aware that various changesand modifications may be i'nade in the details of'construction and thesteps Vin the process ofi' manufacture withont departing from the spiritof the invention and all such changes and modifications are contemplatedthat come within the scope of' the claims appended hereto.l

I claim: i

l: In an anti-friction bearing, the combination with an anti-frictionelement adapted to roll bodily back and forth when actuated. saidelement having studs extended from its opposite ends; of a hollowbox-like retaining'fmeniber within' which said element is disposed, saidelement having sidewalls provided with inturned fiangesialong theirupper edges overhanging said studs, said side walls beingdeformedinwardly from their Y flanges along original condition todispose the previously formed fianges into overhanging relation to saidstuds. .y

2. In a side bearing for railway cars, the combination with a gravityself-centering anti-friction element adapted to roll bodily back andforth, said element having inte grally formed studs at its endsconcentric with the rolling center of Said element; of a hollow box-hizeretaining member adapted to be secured to a bolster, said retainingmember having integral end walls, integral bearing wall and integralopposed side walls, the latter having integrally :formed inturnedcontinuous flanges along their top edges, spaced apart a distanceslightly greater than the axial dimension oi. the body of said elementbut less than the over-all distance from end face to end face of saidstuds whereby removal of said element from said retaining member ispositively prevented.

3. rlhe herein described process of inaking an anti-friction bearing,which includes the following steps; making an anti-friction elementadapted for rolling/movement and providing the same with studs extendingfrom the opposite ends; making a hollow retaining member within whichsaid element is adapted to be received, said retaining member asoriginally formed, being provided with inwardly projecting means,initially so disposedastoV permit insertion of said element with itsstuds past said means within said retaining member; and finallydetorining said retaining member to displace said inwardly projectingmeans into overhanging relation to one of said studs and therebypreventing disassembliiig of said element andsaid member.

el. The herein described process of making an anti-friction elementadapted for rolling movement and providing'the saine with studsextending from the opposite ends; making an anti-friction elementadapted for rolling movement and providing the saine with studsextending from the opposite ends; making a hollow retaining memberwithin which said element is adapted to be received, said retainingmember, as originally formed, having side `walls provided with intuinedthe upper edges, initially so disposed as to permit insertion of saideleinentwith its studs past said flanges within said retaining member;and finally deforming said walls inwardly, thereby displacing saidflanges into overhangingi'elation to said `studs Vand preventingdisassembling of said element and said member.v

5. In aside bearing for railway cars, the combination with a gravityself-centering anti-friction element adapted to roll bodily back andforth, said element having integrally formed studs at its endsconcentric with the rolling center of said element; of

10 ment, but less than the overa-1l distance from end face to end faceof said studs, whereby removal of said element from said retainingmember is positively prevented.

In witness that I claim the foregoing I have hereunto subscribed my namethis 29th 1.5

day of Dec. 1920.

STACY B. HASELTINE. Witnesses CARRIE GAILING, UNA C. PERIN.

